Heyya! I think the Help section is my favourite place to post as I can help people there with things they want to know! I also really like off topic and forum games for reading as they are always full of funny questions, responses, games, and other things alike. It's super fun to see what the community gets up to outside of the server in these areas.
I like walls, the help section, off topic, and forum games. Forum games can get a bit boring though. I like the help section for the same reason the user above me stated. Off topic has interesting things, most of which the OP posts. Walls are fun.
I actually enjoy the Off Topic section the best if I had to choose. People tend to come up with some pretty unique topics that you wouldn't expect to see. It allows for you to get to know some people a bit better and see some different perspective on things you might've not noticed before. I do enjoy seeing ideas for the server and specific games here and there, but it is a lot more fun in my opinion to talk about something completely random whether it be your favorite video game, school, surveys, etc.